30+ ANS D’EXPERTISE
30+ YEARS OF EXPERTISE
• GAM-EG-13
• MIL-STD-461
• IEC 61850
• EN 50155
• IEC 62443-4-1
French designer and manufacturer of ruggedized PLCs, onboard computers, and I/O modules for Defense, Energy, Rail, and Industrial Infrastructure.





From ruggedized PCB design to real-time software integration, we master the complete value chain of critical embedded electronics.
Custom processor boards, isolated I/O cards, and communication gateways engineered for extreme environments.
Open and scalable architectures suitable for both regional rolling stock and large electrical substations. Hot-swappable modules for zero-downtime maintenance.
Automation of electrical substations and industrial protocol converters for real-time remote monitoring and control.
Select a market to explore certified PLCs and onboard computers.
MILITARY-GRADE SEVERITY STANDARDS
Hardened control-command equipment built to withstand extreme electromagnetic interference (EMI), heavy shock, vibration, and harsh marine environments. Our systems secure critical operations on surface vessels, submarines, tactical vehicles, and remote shelters.
GAM-EG-13 / MIL-STD-461Salt Spray ProtectionPhysical DTD IsolationEMI Shielded Enclosures
EN 50155 & EN 45545 CERTIFIED
Field-proven Vehicle Control Units (VCU) and TCMS architectures equipping metros, HSTs, regional trains, locomotives, and trams worldwide. Managing traction, braking, passenger access, HVAC, and onboard diagnostics.
EN 50155 CertifiedSIL2 / SIL4 ReadyTRDP & MVB BusTS 50701 Cybersecurity
IEC 61850 & IEC 60870 COMPLIANT
Telecontrol, real-time monitoring, and automation solutions for electrical substations, transformer stations, and smart grid infrastructures. Our controllers deliver zero-delay network redundancy and high-precision time synchronization.
IEC 61850 (GOOSE/MMS)PTP IEEE 1588 PrecisionPRP / HSR RedundancyDNP3 / IEC 104 / Modbus
HIGH AVAILABILITY & CYBERSECURITY
Centralized control and remote management of safety-critical functions for large civil engineering structures, road and rail tunnels, utility networks, and hazardous industrial facilities operating under severe environmental stress.
ERPS Ring TopologyLong-Distance Remote I/OIEC 62443-4-1 Process20+ Year Long-Term Support
Whatever your industry, our industrial PCs and PLCs share the exact same engineering standards:
Ultra-rugged hardware: Built for zero-downtime environments (fanless design, conformal coating, shock and vibration resistance).
Native cybersecurity: DevSecOps integration compliant with IEC 62443-4-1, aligned with the upcoming European Cyber Resilience Act (CRA).
Guaranteed longevity: In-Service Support (ISS) with hardware and software maintenance guaranteed for over 20 years.
Through the complementary skills within the AGÔN Electronics group, we cover the full value chain: from ruggedized electronic hardware design and custom real-time software integration (TRDP, MVB, IEC 61850) to native cybersecurity and long-term obsolescence management (20+ years).
Full Value-Chain Control: Complete mastery from raw hardware components to complete automated systems.
Stringent Qualifications: Certified solutions for harsh environments (EN 50155, SIL, IEC 62443, MIL-STD).
Tailored Engineering: Prototyping and custom architecture design aligned with your specific constraints.
Have a complex project architecture to size?
At LEROY Automation, cybersecurity is not an afterthought: it is embedded in the silicon and built into our development lifecycles in accordance with IEC 62443-4-1. Our controllers already comply with the upcoming requirements of the European Cyber Resilience Act (CRA).
Cryptographic firmware verification before system boot-up.
Physical unidirectional hardware isolation preventing IT network intrusions.
LEROY Cybersecurity Warranties
IEC 62443-4-1 Certified Process: Rigorous industrial DevSecOps approach from architecture through maintenance.
Vulnerability Tracking (CVE): Security updates and qualified patches provided throughout the hardware’s entire lifecycle (20+ years).
Railway TS 50701 Compliance: Cyber risk management tailored to rolling stock automation systems.
LEROY Automation reaches a new milestone in railway cybersecurity At LEROY Automation, cybersecurity is engineered from the ground up to address the specific constraints of the rail sector. Today, we
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Executive Summary Prior to December 11, 2027, the CRA compliance of products already on the market relies exclusively on Article 14. The technical requirements of Annex I are not applicable,
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Automation: the critical link in the defense chain Automation: the critical link in the defense chain In land-based, naval, or embedded defense systems, automation is a critical functional element of
…Our application engineers will evaluate your architecture and respond within 24 business hours.